Graphite crucibles have good thermal conductivity and high temperature resistance. During high-temperature use, their coefficient of thermal expansion is small, and they have certain strain resistance for rapid heating and cooling. Strong corrosion resistance to acid and alkaline solutions, with excellent chemical stability.
Characteristics of graphite crucible products
1. Low investment, graphite crucibles are priced around 40% lower than similar furnaces.
2. Users do not need to manufacture the crucible furnace, and our business department provides a complete set of design and production.
3. Low energy consumption, due to the reasonable design, advanced structure, novel materials, and tested energy consumption of graphite crucibles compared to similar furnaces of the same model.
4. Less pollution, as clean energy such as natural gas or liquefied gas can be used as fuel, resulting in less pollution.
5. Convenient operation and control, as long as the valve is adjusted according to the furnace temperature.
6. The product quality is high, and due to convenient operation and control, and a good operating environment, the product quality is guaranteed.
7. Energy has a wide range of applications, which can be widely used for natural gas, coal gas, liquefied gas, heavy oil, diesel, etc. It can also be used for coal and coke after simple transformation.
8.The graphite crucible furnace has a wide range of temperature applications, which can be melted, insulated, or both can be used together.
Technical performance of graphite crucible:
1. Furnace temperature range 300-1000
2. The melting capacity of the crucible (based on aluminum) ranges from 30kg to 560kg.
3. Fuel and heat generation: 8600 calories/m of natural gas.
4. Large fuel consumption for molten aluminum: 0.1 natural gas per kilogram of aluminum.
5. Melting time: 35-150 minutes.
Suitable for smelting various non-ferrous metals such as gold, silver, copper, aluminum, lead, zinc, as well as medium carbon steel and various rare metals.
Physical performance: Fire resistance ≥ 16500C; Apparent porosity ≤ 30%; Volume density ≥ 1.7g/cm3; Compression strength ≥ 8.5MPa
Chemical composition: C: 20-45%; SIC: 1-40%; AL2O3: 2-20%; SIO2: 3-38%
Each crucible represents 1 kilogram of molten brass.
Purpose of graphite crucible:
Graphite crucible is a refractory vessel made of natural flake graphite, wax stone, silicon carbide and other raw materials, used for smelting and casting copper, aluminum, zinc, lead, gold, silver, and various rare metals.
Instructions for using crucible products
1. The specification number of the crucible is the capacity of copper (#/kg)
2. Graphite crucibles should be kept away from moisture and must be stored in a dry place or on a wooden frame.
3. Handle with care during transportation and strictly prohibit falling or shaking.
4. Before use, it is necessary to heat bake in the drying equipment or by the furnace, with the temperature gradually rising to 500 ℃.
5. The crucible should be placed below the surface of the furnace mouth to avoid wear and tear on the furnace cover.
6. When adding materials, it should be based on the solubility of the crucible, and too much material should not be added to avoid expansion of the crucible.
7. The discharge tool and crucible clamp should conform to the shape of the crucible, and the middle part should be clamped to avoid local force damage to the crucible.
8. When removing slag and coke from the inner and outer walls of the crucible, it should be gently knocked to avoid damaging the crucible.
9. A suitable distance should be maintained between the crucible and the furnace wall, and the crucible should be placed in the center of the furnace.
10. The use of excessive combustion aids and additives will reduce the service life of the crucible.
11. During use, rotating the crucible once a week can extend its service life.
12. Avoid direct spraying of strong oxidation flames on the sides and bottom of the crucible.
Post time: Sep-06-2023